... .Feature:high speed,long life,stocks 4.NBR Leaf Chain BL serious precision leaf chains Leaf Chain is the most simple ... diameter is almost the same as ANSI G7 roller chain. BL TypeBL Series leaf chains consist of link plates which are ... is not used, so it is environmentally safe. Leaf chain(Bl series) LH2422, LH2423, LH2434, LH2444, LH2488, LH2466, LH2823, LH2844/ 2846 ...